Burner.



PATENTfib' JUNE-30, 1903.

M. L. ROSS.

BURNER.

APPL10ATION FILED JUNE 13. 1902.

N0 MODEL.

Tu: NORRIS vzvzns co. PHOTO-LIYHO. msnmcmm n. c.

I Patented j'une 30, 1903;

PATENT OFFIQE.

*MoNRoELEE ROSS, OF PARIS, FRANCE.

BURNER.

SPECIFICATION forming part of Letters latent No. 732,224, dated June 30,1903.

Application filed June 13, 1902. $erial No- 111,560. No modeld T0 allwhmn it may concern: 7

Be it known that I, MONROE LEE Ross, a citizen of the French Republic,residing at 21 Rue Galilee, Paris, France, have invented certain new anduseful Improvements in and Relating to Burners, (for which I haveapplied for patent in. Great Britain, No.- ,778, hearing date January10,'1902,) of which the following is a specification.

This invention relates to burners, and particularly to burners forheating-stoves.

The invention has for its general object to provide a burner in whichthereshall be the most intimate admixture of gas and air and the mostperfect combustion in the flame.

According to the invention a burner is provided having twomixing-chambers, one within the other, thus constituting a double Bunsenarrangement, the outer mixing-chamber being provided with the top,insulated from the main body thereof. The top of the chamber is soprovided as to form an annular space gradually restricted toward thetop, this being effected, preferably, by the formation of the top of themixin g-chamberas an inwardlyprotruding cone, a series of holes or tubesbeing provided upon the top of thechamber for the mixture of gas and airto issue in the flame, the arrangement being such that convection orcirculation of the mixture of gas and air results at the top of themixing-chamber before the mixture issues out through the holes or tubes,so that thereby firing or lighting back is prevented.

According to the invention also a circular hollow chamber-or radiator isprovided above the flame, which chamber contains sand and lime, which isrendered incandescent and serves for the storage of heat, which" isuniformly radiated from it; but this hollow chamber may instead of beingfilled with sand and lime or other refractory material be formed ofperforated plates, through the perforations on the top plate of whichthe flame may issue to produce a beautiful torchlight effect, theperforated plates in such a case being preferably lined with metallicgauze. The chamber or radiator may be formed of metal plates or ofearthenware and may be used for the vpurpose of containing perfu min g,disinfecting, or antiseptic agents, which are diffused on theapplication of heat in the use of the burner. The plates forming thehollow chamber or radiator may be held together and may be fixed in anydeter- 'mined position in relation to the burner by being carried upon avertical pillar or stem, which is mounted upon the top of the mixing-chamber, the pillar or stem being screwed throughout its length andcarrying nuts by means of which the plates are supported and theirposition adjusted as required, or instead the mixing-chamber may carry afixed plain stem, while the hollow chamber or radiator may be providedwith a hollow central tube, by which the chamber may be applied upon thefixed stem without any necessity of screwing or manipulation and may beremoved by simply being lifted off.

According to the invention also the casing or outer mixing-chamber maybe provided in Y a number of parts or sections, the one capable oftelescoping into the next beneath it, peripheral grooves and rims being,for example, provided near the terminal edges of the respective parts orsections,by means of which they may be sprung into position, so thatwhen the casing is extended it may be retained extended until it isforcibly collapsed. Such a casing may be provided with its top surfaceformed of an inwardly-conical shape and may carry a circular hollowchamber or radiator, such as hereinbefore described, by

such means as a screwed pillar or stem, the

perforated plates or parts of the chamber being capable'of separation,while the collapsible parts or sections of the outer mixing-chamher whentelescoped one within the other are capable of insertion within theplates or parts of the chamber for convenience of carriage or transportof the burner. ment of a collapsible mixing chamber may be provided withfeet, which are so hinged as to be capable of being turned inwardly onthe Such an arrange base part, while the burner is capable of beingfixed in position in the base, part of the mixing-chamber by means of across bridgepiece fixed to the base part of the mixingchamber by suchmeans as a bayonet-joint fastening, so that the burner may be withdrawnfrom the mixing-chamber for dismounting the burner or stove.

According to the invention a cylinder of gauze may be arranged centrallywithin the outer mixing-chamber, such cylinder dividing themixing-chamber into a central space and an outer annular space, while asheet of gauze may be transversely arranged within the mixing-chamberbetween the main body and the top part thereof, such cylinder and sheetof gauze serving for the purpose of the intimate admixture of the gasand air within the outer mixing-chamber and of preventing drafts orcurrents of air from affecting the perfect combustion in the flame.

The invention is illustrated in the accompanying drawings, in which-Figure 1 is a sectional elevation of a heating-stove providedaccordingto theinvention. Fig. 2 is a sectional elevation on the line CD of Fig. 1. Fig. 2 is an elevation of the mixing-chamber andburnerillustrated in Fig. 1. Figs. 3 and 4 are respectively views of therespective plates forming the hollow chamber or radiator surmounting theburner as illustrated in Figs. 1 and 2. Fig. 5 is a sectional elevationon the line A B of Fig. 1. Fig. 6 is a detail view in section of amodified arrangement for mounting the hollow chamber or radiator overthe burner. Fig. 7 is a sectional elevation of a modification in whichthe mixing-chamber is formed from collapsible parts or sections. Fig.Sis a sectional elevation corresponding to Fig. 7, showing the parts ofthe mixing-chamber collapsed and fitted within the plates or partsforming the hollow chamber or radiator.

In carryingthe invention into effect accordingto one modification, asillustrated in Figs. 1, 2, 2, 3, 4, and 5, I provide acasing 14, havingits lower part 13 formed conical and outwardly flaring and with asupporting part 2, which part may be surmounted upon a foundation orbase plate 1, provided with feet, as illustrated. The supporting part 2is perforated with holes 3 for the admission of air, and this base partmay, as is preferable, be formed separatelyfrom the main body of thecasing 14, so that a greater or less amount of inlet for air may beprovided, according to the heating capacity required of the burner, thesupporting part 2 being provided with holes 3 of smaller or largerdiameter or of smallerorlargerarea,according tothe amount of airrequired. At the base of the casing and carried upon the base part 1 aBunsen burner 8 is provided, within which the gasinlet connection 4 isscrewed, while a separate projecting nozzle 7 is screwed within thislatter, as illustrated. This projecting nozzle 7 is made of soft metal,so that it may be pinched so as to be reduced or so that it may beenlarged, according to the quantity of gas required to be passedthrough, as determined by the heating capacity desired. The burner S isprovided with lateral and opposite holes 9 and 10, respectively, throughwhich air may pass from without, and a nozzle 11, prefer-.

ably of rose formation, is provided. The inlet-pipe connection 4 isscrewed within a central hole provided in the base-plate 1 and isfixedly secured in position by means of a nut 6. The burner 8 is screwedupon the outwardly-protruding extremity of the inlet-pipe connection 4.The mixture of gas and'air which is more or less rich in gas issuesoutwardly from the Bunsen burner 8 and induces a further quantity of airinto the easing 14 from below through the holes 3, whereby a further andintimate admixture of gas results with this new supply of air. The top17 of the casing 14 is provided with an inwardly-protruding conical part19, while a series of jet-holes 21 is provided on the base 20 of thisconical part 19, so that the intimate mixture of gas and air from thesecond mixing-chamber may issue through. Anumber of rows or series ofholes may be provided as required.- The formation of the top of themixing-chamber as an inwardly-protruding cone allows of the convectionor circulation of the gas and air in the upper partof the mixing-chamberprior to its issuing out through the holes 21, andthus precludes firingor lighting back. It is preferred to form the top 17 of the casing ofthe outer mixing-chamber separate from the main body 14 and to provideasbestos or other non-conducting washers or rings 15 or othermeans, sothat thereby the heat from the top part may not be conducted to thelower main body part, and thereby effeet the expansion of the mixture ofgas and air in the lower part of the mixing-chamber. The asbestoswashers or rings 15 are preferably laid between flanges respectivelyprovided upon themain body 14 and top 17 of the casing, respectively,and the flanges are secured together by such means as screws 18, asillustrated. The top of the mixingchamber carries a screwed rod orpillar 24, the lower extremity of which is screwed within a boss 26,provided within the inwardlyprotruding conical part 19 on the top of thecasing, and upon this rod are mounted two curved parts or plates 22 23,preferably stamped from sheet metal, the top one 23 of which may beperforated and may be provided on its interior with a sheet of gauze.The peripheral edge of the one part 23 is engaged within that of theother 22, so as to form a hollow chamber or radiator, which may befilled with a mixture of sand and lime or with other refractory materialor with any perfuming, disinfecting, or antiseptic substance, so thatthe chamber may thus be employed as a receptacle and radiator of heatand for the purpose of disseminating perfume, disinfectan t, orantiseptic. Nuts 27 28 are screwed upon the rod 24 and serve to set theposition of the hollow chamber or radiator, as illustrated. It will beunderstood that the flame issuing from the top 17 of the casing heatsthe chamber or radiator above it to incandescence and maintains it at acertain temperature, whereby heat is uniformly radiated from it. Theparts or plates 22 23 may each be perforated, so that gas may issuethrough the hollow chamber or radiator, so as to issue out through theperforations on the top part or plate, whereby a beautiful torch lighteffect is produced. In such a case it would be desirable to adjust theposition of the hollow chamber or radiator in relation to the holes 21.A casing 31, provided with holes 32 toward its lower outwardly-flaringextremity, may be provided, and this outer casing may be provided withholes at its upper part and through its cover, so that currents ofheated air may pass through.

In such an arrangement, as hereinbefore described, the use of sheets ofmetallic gauze is dispensed with; but with a View to rendering the flameuninfiuenced by any drafts or currents of air a cylinder of gauze 141may be provided within the casing 14, which cylinder may rest upon thenozzle of the Bun-- or radiator may be provided with a central tube 242,as illustrated in Fig. 6, so that thereby for the fitting of the hollowchamber or radiator upon the burner it is onlynecessary 'to place thetube 242 upon the guiding-pin 241 and for removing it is only necessaryto lift the chamber.

Instead of providing holes 21 in the top part of the casing ormixing-chamber tubes may be provided, especially where the burner isemployed in connection with an incandescent mantle for lighting.

Instead of providing a vertically-disposed mixing-chamber this may bearranged horizontally, and the burner parts may issue outwardly from it,or instead the mixing-chamber may be formed as an annular chamber or maybe disposed otherwise than vertical; but in such cases an intermediatemixingchamber may be provided, into which the Bunsen burner protrudes,While the mixture of gas and air passes upwardly at the opposite end ofthis chamber into the final mixingchamber, whence the jet or jets issue.

For convenience in the use of the burner with a gas-burner for lightingin rooms or apartments where only one gas-supply pipe is provided athree-way connection may be formed upon the fitting, which is screwed tothe base of the Bunsen burner, to one of whose stems the gas-lamp may beconnected.

In carrying the invention into effect in the provision of a burner orstove suitable for carriage or transport I may form the outermixing-chamber from a seriesof telescopic parts or sections 35 36, asillustrated in Figs. 7 and 8, and in such a case these parts after beingtelescoped one within the other may be passed upon the rod or pillar 33,which in the cross-piece 81, having four arms which en-v gage withinbayonet-slots provided in the lower part of the base portion 13 of theeasing, while supporting-feet 211 are fitted to the base part 13 and arecapable of being turned into a horizontal position when the stove is notin use.

The upper edge of each of the telescoping parts of the casing ispreferably provided with an inwardly-protruding peripheral edge, whichsprings into the corresponding groove in the respective lowerextremities of said parts, so that they may thus only be telescoped onthe application of pressure in an axial direction. The parts, however,may be connected together when in their extended position by bayonetpins and slots or any other suitable means.

The main casing or mixing-chamber may be provided of earthenware orpottery instead of from metal, while the hollow chamber or radiator maybe similarly provided from pottery or earthenware in two parts or inwhole.

Instead of employing the burner for the purposes of a heating-stove thehollow chamber or radiator may be removed and a grid may be applied uponthe top 17 of the casing, so that the burner may be used for otherpurposes, such as for cooking or for cooking liqnids.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a burner the combination of a mixingchamber, a gas-jet nozzlewithin the lower part of said mixing-chamber, a top to said mixingchamber, said top forming the burner-nozzle, a non-conducting layerbetween said top and said mixing-chamber, a vertical rod carried uponsaid top, a radiator mounted on said rod, said radiator being formed oftwo curved plates carrying within them refractory material,substantially as described.

2. In'a burner the combination of a mixingchamber,a gas-jet nozzlewithin the lower part of said mixing-chamber, a top to said mixing achamber, said top forming the burner-nozzle, a non-conducting layerbetween said top and said mixing-chamber, a sheet of gauze between saidtop and said mixing-chamber, said sheet of gauze lying across the top ofthe mixing-chamber, substantially as described.

3. In a burner the combination of a mixingchamber,a gas-jet nozzlewithin the lower part of said mixing-chamber, a top to saidmixingchamber, said top forming the burner-nozzle, a non-conductinglayer between said top and said mixing-chamber, a sheet of gauze betweensaid top and said mixing-chamber, said sheet of gauze traversing the topof said mixing-chamber, and a cylinder of gauze within the mixingchamber, substantially as described;

4. In aburner the combination of a mixingchamber, a gas-jet nozzleWithin the lower part of said mixing-chamber, a top to saidmixingchamber, said top having its upper part formed as aninwardly-protruding cone, and as the burner-nozzle, and a non-conductinglayer between said top and said mixingchamber substantially asdescribed.

5. In aburner the combination of a mixingchamber, a gas-jet nozzleWithin the lower part of said mixing-chamber, atop to saidmixingchamber, said top having its upper part formed as aninwardly-protruding cone, and as the burner-nozzle, a non-conductinglayer between said top and said mixing-chamber,

